1122101000021 has 8 divisors (see below), whose sum is σ = 1140545359800. Its totient is φ = 1103658229440.

The previous prime is 1122101000017. The next prime is 1122101000039. The reversal of 1122101000021 is 1200001012211.

It can be written as a sum of positive squares in 4 ways, for example, as 139008919921 + 983092080100 = 372839^2 + 991510^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1122101000021 - 2² = 1122101000017 is a prime.

It is a super-2 number, since 2×1122101000021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122100999966 and 1122101000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122101000051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1070675 + ... + 1841343.

It is an arithmetic number, because the mean of its divisors is an integer number (142568169975).

Almost surely, 2^{1122101000021} is an apocalyptic number.

It is an amenable number.

1122101000021 is a deficient number, since it is larger than the sum of its proper divisors (18444359779).

1122101000021 is an equidigital number, since it uses as much as digits as its factorization.

1122101000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794599.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1122101000021 its reverse (1200001012211), we get a palindrome (2322102012232).

The spelling of 1122101000021 in words is "one trillion, one hundred twenty-two billion, one hundred one million, twenty-one", and thus it is an aban number.